https://doi.org/10.1140/epjs/s11734-025-01601-3
Review
Charmonia production at the LHC: an overview of recent results using NRQCD and modified NRQCD models
1
Department of Physics, Ravenshaw University, 753003, Cuttack, India
2
School of Arts and Sciences, Azim Premji University, Sarjapura, 562125, Bangalore, India
a
sushreesimran.mishra97@gmail.com
Received:
28
January
2025
Accepted:
24
March
2025
Published online:
10
April
2025
The Non-Relativistic Quantum Chromodynamics (NRQCD) framework, based on heavy quark symmetry relation, predicts the 
production cross-section. However, a significant discrepancy is observed between NRQCD prediction and LHCb data. In contrast, the modified NRQCD (MNRQCD) approach offers a coherent solution to the anomaly, successfully explaining the experimental data. In MNRQCD, we account the effect of perturbative soft gluons on the intermediate charm-anticharm octet states in NRQCD to make parameter-free predictions for different charmonia at the Large Hadron Collider (LHC). In addition, we have compared the LHCb measurements for the integrated cross-section of 
production at 13 TeV, in the kinematic range 5.0 < 
< 20.0 GeV and 2.0 < y < 4.0 using NRQCD and MNRQCD predictions. These predictions demonstrate that the MNRQCD is in good agreement with the data, shedding light on the underlying dynamics of charmonium production. In this paper, we review on charmonia production at the LHC in the context of NRQCD and MNRQCD.
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Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
